Where can I find _______ in the US?

I've started this thread just to be generally helpful. A lot of our online databases are quite outdated- they may have been inaccurate while being updated, but now are even worse. This thread has been posted in the US forum just to be locality based- knowing an animal you're looking to see is in Europe won't help much, unless you're willing to travel to see it, and have the funds to do so. This way, we have a much more local base that, with the amount of members in the US, will hopefully solve any questions about species locations with ease. Here is the format I think would be easiest for posting in:
Species in question (common and scientific name) | Where you think it may be kept, but want confirmation.

The second part is for people who frequently visit the zoo(s) in question- they may know already, or be able to check on the next visit. I will start with one of my own.

Species: Coasta Rica Variable Harlequin Toad or Clown Frog (Atelopus varius)
I think it may be kept at the Henry Doorly Zoo.

Most recently I have seen Bushmasters (not sure which species) in the Smithsonian National Zoo and the Catoctin Zoo (Maryland). I also saw them in Los Angeles in 2014 and in Atlanta around 2010. I know other places have them also.

Another species I want to find:
Black and Rufous Elephant Shrew (Rhynchocyon petersi)- I know for a fact they are at Peoria Zoo and Philadelphia Zoo. Any others? They used to be at SNZ and Louisville Zoo, but aren't anymore. Are they still at Henry Doorly?

As a rule, always take down the scientific name over the common name. While there could always be mistakes and the wrong name could be given, taking down the scientific name will give you the best chance of knowing exactly what you've seen.

As a rule, always take down the scientific name over the common name. While there could always be mistakes and the wrong name could be given, taking down the scientific name will give you the best chance of knowing exactly what you've seen.

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I'll do that. To be honest though, I usually just note bushmaster and keep walking because I usually just ignore bigger snakes. Amphibians, smaller tortoises/turtles, and small lizards are what grab my attention in these houses. I also need to start doing this with frogs and toads.

Another species I want to find:
Black and Rufous Elephant Shrew (Rhynchocyon petersi)- I know for a fact they are at Peoria Zoo and Philadelphia Zoo. Any others? They used to be at SNZ and Louisville Zoo, but aren't anymore. Are they still at Henry Doorly?

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Also held at -
Zoo Boise, Idaho
Denver
& still at Henry Doorly
(+ Bronx, as indicated above)